DATA SHEET. Dual and Mono cased 145 V to 276 V PTC thermistors for degaussing. BCcomponents

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Homer Tyrone Bates
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1 DATA SHEET Supersedes data of 17th May 1999 File under BCcomponents, BC Sep 19

2 FEATURES Residual currents as low as 2 ma (p-p), ideal for high-resolution displays Long decay time Stable performance over a long time (>20000 operations) Self-extinguishing white plastic case ( UL 94.V.0 ) Design-in support available. MBB633 a. Dual or double mono PTC. APPLICATIONS Colour televisions Colour monitors. DESCRIPTION For good picture definition, colour televisions and monitors must be degaussed by a strong alternating magnetic field which gradually and symmetrically decays to a small value of residual current. This can be achieved by connecting a PTC thermistor in the circuit. The new generation of flat-screen, high-definition colour televisions and monitors require an excellent picture quality with high colour purity. This can only be achieved by a dual PTC device housing two PTC thermistors in intimate thermal contact, one being used to heat the other and so further reduce the residual current. QUICK REFERENCE DATA CCB442 b. Mono PTC. Fig.1 Component outlines. PARAMETER VALUE UNIT Resistance of PTC (R s ) at 25 C 3 to 30 Ω Standard tolerance on resistance of 20 and 25 % PTC (R s ) at 25 C Resistance of heater PTC (R p ) at 25 C 3000 Ω Standard tolerance on resistance of heater PTC 75 % (R p ) at 25 C Maximum AC voltage (RMS value) 145 to 276 V Minimum inrush current (peak-to-peak value) 10 to 30 A Temperature range (at maximum voltage) 0 to 60 C Available pitch: 4e/1e to 2.54 mm 4e/2e to 5.08 mm Standard pin length 4.2 mm Detailed specifications based on CECC 44000/IEC Sep 19 2

3 I INR CCB V (V RMS ) Fig.2 Minimum inrush current as a percentage of mains voltage. Application specific data The data shown in Tables 1 and 2 is obtained from measurements at reference parameters. If these parameters do not correspond to the application parameters required, refer to Figures 7 to 13 in this data handbook, section Introduction, Sep 19 3

4 MECHANICAL DATA 16.5 ± ±0.5 4e/1e pitch 20.5 ±0.4 A B C 2.54 ±0.3 (1e) 0.9 ± ± ± ±0.05 CCB max ± ± ±0.3 Dimensions in mm. For electrical data and ordering information, see Table 1. Fig.3 Dual PTC pin configuration 4e/1e pitch ± ± 0.5 4e/2e pitch A B C 5.08 ±0.3 (2e) 20.5 ± ± ± ± ±0.05 CCB max ± ± ±0.6 Dimensions in mm. For electrical data and ordering information, see Table 1. Fig.4 Dual PTC pin configuration 4e/2e pitch Sep 19 4

5 16.5 ± ±0.5 4e pitch A B 20.5 ± ± ± ± ±0.05 CCB max ±0.3 Dimensions in mm. For electrical data and ordering information, see Table 2. Fig.5 Mono PTC pin configuration 4e pitch Sep 19 5

6 2000 Sep 19 6 ELECTRICAL DATA AND ORDERING INFORMATION Dual range Table 1 Electrical data and catalogue numbers. The shading indicates preferred types. MINIMUM (6) (A) MAXIMUM RESIDUAL CURRENT (ma) 5s 30 s 180 s R 25 (2) R coil (3)(6) R s ±% MIN. TYP. TYPICAL DECAY PERFORMANCE DECAY TIME (4)(6) (ms) ALPHA MAX. (5) TYPE (7) CATALOGUE NUMBER (8) e/1e pitch 4e/2e pitch U R = 220 to 240 V RMS (U max = 276 V RMS ) LD LD LD LT LD/LT LT LD/LT LD/LT Vto276V BCcomponents

7 2000 Sep 19 7 MINIMUM (6) (A) MAXIMUM RESIDUAL CURRENT (ma) 5s 30 s 180 s R 25 (2) R coil (3)(6) R s ±% MIN. TYP. TYPICAL DECAY PERFORMANCE DECAY TIME (4)(6) (ms) ALPHA MAX. (5) U R = 100 to 120 V RMS (U max = 145 V RMS ) LT / LD/LT / LD TYPE (7) Notes 1. All peak-to-peak currents are measured at typical resistance of the coil at 220 V, 50 Hz (AC) and at 25 C. 2. Lower tolerances on resistance of PTC are available on request. 3. Lower minimum coil resistance is available on request. 4. Decay time is the time from the moment of maximum peak current until the half of the maximum peak inrush current. 5. Alpha maximum is the maximum decrease in current expressed in percent between two successive peaks. 6. Inrush currents and decay times at other voltage coil combinations can be derived from Figures 7 to 13 in this data handbook, section Introduction,. 7. LT = low tolerance; LD = long decay. 8. Smallest packaging quantity (SPQ) = 600 units. CATALOGUE NUMBER (8) e/1e pitch 4e/2e pitch 145Vto276V BCcomponents

8 2000 Sep 19 8 Mono cased range Table 2 Electrical data and catalogue numbers. The shading indicates preferred types. MINIMUM (A) MAXIMUM RESIDUAL CURRENT (ma) 5s 30 s 180 s R 25 (2) R coil (3)(6) R s ±% MIN. TYP. TYPICAL DECAY PERFORMANCE DECAY TIME (4)(6) (ms) ALPHA MAX. (5) TYPE (7) CATALOGUE NUMBER (8) e pitch U R = 220 to 240 V RMS (U max = 276 V RMS ) LD LD LT LD/LT LD/LT Vto276V BCcomponents

9 2000 Sep 19 9 MINIMUM (A) MAXIMUM RESIDUAL CURRENT (ma) 5s 30 s 180 s R 25 (2) R coil (3)(6) R s ±% MIN. TYP. TYPICAL DECAY PERFORMANCE DECAY TIME (4)(6) (ms) ALPHA MAX. (5) U R = 100 to 120 V RMS (U max = 145 V RMS ) / LD / LD TYPE (7) Notes 1. All peak-to-peak currents are measured at typical resistance of the coil at 220 V, 50 Hz (AC) and at 25 C. 2. Lower tolerances on resistance of PTC are available on request. 3. Lower minimum coil resistance is available on request. 4. Decay time is the time from the moment of maximum peak current until the half of the maximum peak inrush current. 5. Alpha maximum is the maximum decrease in current expressed in percent between two successive peaks. 6. Inrush currents and decay times at other voltage coil combinations can be derived from Figures 7 to 13 in this data handbook, section Introduction,. 7. LT = low tolerance; LD = long decay. 8. Smallest packaging quantity (SPQ) = 600 units. CATALOGUE NUMBER (8) e pitch 145Vto276V BCcomponents

PTC Thermistors For Degaussing, Dual, Mono And Double Mono Cased

222 662 96... PTC Thermistors For Degaussing, FETURES a. Dual or double mono PTC degaussing. M6 Residual currents as low as 2 m (p-p), ideal for high-resolution displays Long decay time Stable performance